Astronomy 2

Match it! Select the correct answer from the pull down...Good luck!

Round depressions on the moon's surface are called_____.

Seasons are caused by ______.

Earth's axis slowly but continuously points in different directions, a movement known as _________.

What occurs when the moon casts its shadow on Earth?

Using the Doppler effect, astronomers can determine a star's _______.

Earth is closest to the Sun at a point called______.

Gamma rays, X-rays, visible light, and radio waves are all types of ______.

The center of mass of two or more bodies, usually bodies orbiting around each other, such as the Earth and the Moon is called______________.